Final answer:
The best advice for Merrilou who is unsure about setting goals without a clear career path is to set goals regardless of uncertainty, as they provide direction and motivation while being flexible enough to adapt as she gains more self-knowledge and the work landscape evolves.
Step-by-step explanation:
Merrilou's concerns about not knowing what she wants to do with her life and whether to set goals are common among high school students. The best advice for her might be to set goals regardless of uncertainty. Setting goals does not mean they are set in stone; they can be adapted as she learns more about herself and the world of work. Additionally, setting goals helps in navigating life choices when there is uncertainty involved. Finally, it is perfectly normal to feel unsure about one's goals, but establishing a direction can provide motivation and a framework for decision-making, even in the face of uncertainties. It is essential to be flexible and open to change, as the world of work is constantly evolving.